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  • Snakeheads Invade the United States Teach your students about the challenges nonnative species pose by focusing on a current example, the northern snakehead fish. Native to China, Russia, and Korea, this fish has established breeding populations in several states. Find out how this might have happened and what scientists are doing about it. View »
  • Schoolyard Field Study Conduct a field study of your schoolyard with this activity. It’s an opportunity for students to apply what they’ve learned throughout the year. Students work in groups of 2 to 3 over several class periods. View »
  • Human Body Systems FREE resources for teaching your students about human body systems. View »
  • Human Body: Digestive System Teach the main functions of the digestive system with the help of this infographic. View »
  • Debunking the 4° C Polymerase Chain Reaction (PCR) Myth Do samples need to be refrigerated immediately after PCR? No. You can leave them at room temperature overnight—and much longer! The founders of miniPCR® explore why. View »
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